Home / 101,770.20-140,512.38-63,587.88

Finding the Fourth Proportional to 101,770.20, 140,512.38 and 63,587.88

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Solution

The fourth proportional to 101,770.20, 140,512.38 and 63,587.88 is: 87,794.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,770.20 : 140,512.38 = 63,587.88 : x
  2. Step 2: Convert to fraction form
    101,770.20/140,512.38 = 63,587.88/x
  3. Step 3: Cross multiply
    101,770.20x = 140,512.38 × 63,587.88
  4. Step 4: Simplify right side
    101,770.20x = 8,934,884,357.95
  5. Step 5: Solve for x
    x = 8,934,884,357.95/101,770.20
  6. Step 6: Final answer
    x = 87,794.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.